evoxdash.xbe renamed to default.xbe, help?

In my frustration to burn a game, I ran across a message telling me i should rename my evoxdash.xbe to default.xbe. So, I did it (without backing it up), and now I can't get to the evox menu screen. It just takes me to the normal ms dashboard every time. When I turn the box on, the evox icon does appear, but it still takes me to the ms menu.

Is there any way to rename it back to evoxdash.xbe, or fix it some other way?